William h



HYDROCARBON FURNAGE.

Patented 0013,.: 11,v 1881.,4

W. R.. PARK an Pf D HEATH,

(No odel.)

A NITED' STATES v PATENT OFFICE.

WILLIAM n. PARK AND FRANK D. HEATH, F EosTo-N, MASS., AssIGNo-E:

TO THE HANCOCK INSPIRATOR COMPANY, OF SAME PLAGE.

HYDRoCAnBoN-FURNACE.

SlECIFICATON forming part of Letters Patent No. 248,110, dated October 11, 1881. application filed September 6, 1880. (No modell.)

To all whom yit may concern Be it known that we, TILLIAM R. PARK and FRANK D. HEATH, ofBoston, in the county of Suiolk and State of Massachusetts, have invented a new and useful Improvement in Hydrocarbon Furnaces, otwhich the following is a specification.

Ourinvention relates to an apparatus. for burning hydrocarbons for hea-ting purposes.

Io In apparatus heretofore employed for a similar purpose it-has been found necessary,in order to secure the most perfect combustion, to heat separately the elements employedsuch as oil, steam, air, sc-before their ignition,

thus necessitating the employment of complicated devices.

In our improved apparatus the several elements are conducted through tubes or pas-l sages and combined at their natural temperazo ture, (with the exception in some cases ot the oil or tar, which may require to be heated sufciently to flow freely,) and ignited in a combustion-chamber, the walls of which become heated to such a degree of intensity as to insure a perfect and complete combustion ot the combined elements.

Our invention consists in a series ot' tubes or passages arranged within a shell or casing, in combination with a nozzle and a combustion-chamber, constructed as shown.

lt also consists of an additional chamber formed by ajacket or casing surrounding the combustion -chaniber, by means of which, it' desired, the elements of combustion, either or all ot' them, may be heated or superheated.

Our invention is illustrated in the accompanying drawing, in which Ais the outer shell or casing containing the several tubes and passages.

B is the oil-tubc, to be connected with areservoir suitably located.

Surrounding the oil-tube, and by means of which the oil or other analogous substance is heated,is the steam-pa ssage S, connected with 5 a pipe leading to the boiler.

C is the passage for the supply ot' atmospheric air.

G is a pipe,into which steam passes through the openings s s, and is hereled on its inner 5o end to form a valve, D, haring its seat onthe 'tube H, and having its seat on the inner side ofthe end of pipe G. ,'Ihe opening of valveE is adjusted to regulate the supply of steam by means ofthe screw on tube'H. F is a` stop-cock for regulating the supply of `6o -air in tube C.

I I represent, respectively, a chamber-and nozzle at the, end of the severaltuhes or passages ll G H, to receive the several elements of combustion and combine or concentrate the same before discharging into the combustion..Y chamber J. y I J is a combustion-chamber, of any requiret1 length, and open atits outer end. It is counected to the casing A in any suitable manner, 7oand is provided with a recessed ort'nnnel-shaped opening,P,in front ofthe nozzle I. The openng P is formed by an inclined ang'e,p, extending from the inner edge of the chamber J, which flange maybe increased or diminished in length, to make the opening P greater or less, as required. The said flange p serves to concentrate the several elements passing from the nozzle I, and also to prevent the return of the elements of combustion or flame from the 8o chamber J. The mingled elements-air, oil, steam, ho-passing from chamber I out ot' nozzle-opening I', become ignited at or near said opening l', and consequently a high'degree ot' heat is imparted to the walls of chamber J. In order to utilize'th'is heat we surround the chamber J with a casing or jacket, K, closed at its outer end upon the cylinder, provided with openings L near its outer cud, for the admission of air, which passes along through 9o the chamber L,and is drawn into combustionchaniber J by the force of the jet passing out from nozzle I through opening l?, the latter being so proportioned in relation to the said nozzle as to create the proper draft at that point. The quantity of air entering chamber L can he regulated hy means of a cap,M, provided with openings to correspond with the openings L', so that the latter may be entirely or partially opened or closed. The chamber Ioo L may also be used for heating the' oil by passing the latter through a pipe coiled around the out the outer chamber, L. When used together the combustion-chamber casing and the jacket K may be cast in one piece, tappinginto chaniber L. Ignition takes place within the chamber J, which latter is made ot' considerable length for the purpose of insuring the igni tion and complete combustion of the several elements before passing out ot' the combustionchamber into the furnace.

N represents apressure-regulator, which may be of any known form or construction suitable for use in this connection, and connecting with the steam-passage S by a pipe, R,and with the boiler by a pipe, O, by means ot' which said pressure-regulator, with a varying pressure on theY boiler, the desired pressure may be constautly maintained at the burner. Without a iregulator and with a steadily-increasing pressure on the boiler, the burner will increase or burn more and more', accordingly as the steam arises, which should not be the case, for at such time less, ratherthan more, fuel is required. With a regulator the amount ofpfuel and the combustion are steadily maintained without regard to the amount of pressure in the boiler. When the requisite amount of fuel is ascertained the regulator is adjusted to the required pressure to operate the burner, and the proper quantities of oil and air admitted, thus rendering the apparatus automatic in the matter ot' admitting steam, consequently avoiding the necessity of close attention and manipulation of valves, &c., as when the apparatus is required to be adjusted by hand.'

What we claim as ourvinventiou is- 1. The chamber J, constructed with the angep and opening P, in combination with a. series ot'pipes or passages, S B C, substantially as and for the purpose set forth;

2. In combination with the combustion -chamnames to this specification in the presence ot' two subscribing witnesses.

WILLIAM R. PARK.

FRANK D. HEATH.

Witnesses: Y

Jos. H. ADAMS, EDW. S. COBB.

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